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Effect of lining application techniques on microleakage in class II composite restorations

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Ȳº´¹®, ±èÁÖÇü, Philip Millstein, ¹ÚÁö¸¸, ¹ÚÀºÁø,
¼Ò¼Ó »ó¼¼Á¤º¸
Ȳº´¹® ( Hwang Byung-Moon ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÇб³½Ç
±èÁÖÇü ( Kim Joo-Hyung ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
 ( Philip Millstein ) - ÇϹöµåÄ¡°ú´ëÇб³ »ýüÀç·áº¸Ã¶Çб³½Ç
¹ÚÁö¸¸ ( Park Ji-Man ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÇб³½Ç
¹ÚÀºÁø ( Park Eun-Jin ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÇб³½Ç

Abstract

¸ñÀû: º» ¿¬±¸´Â µÎ°¡Áö ´Ù¸¥ ¹æ¹ý¿¡ ÀÇÇÑ ·¹Áø°­È­Çü ±Û·¡½º ¾ÆÀÌ¿À³ë¸Ó(RMGI) ÀÌÀåÀçÀÇ Àû¿ëÀÌ 2±Þ¿Íµ¿ º¹ÇÕ·¹Áø
¼öº¹ÀÇ ¹Ì¼¼´©Ãâ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ°íÀÚ ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: 36°³ÀÇ ¹ßÄ¡ÇÑ Ä¡¾Æ¿¡ 2±Þ ¿Íµ¿À» Çü¼ºÇÑ µÚ ¹«ÀÛÀ§·Î 3°³ÀÇ ±ºÀ¸·Î ³ª´©¾ú´Ù. 1±ºÀº ´ëÁ¶±ºÀ¸·Î ÀÌÀåÀ縦 Àû¿ëÇÏÁö ¾Ê¾ÒÀ¸¸ç, 2±ºÀº Ä¡°ú¿ë ŽħÀ¸·Î RMGI ÀÌÀåÀç Àû¿ë, 3±ºÀº Ưº°È÷ °í¾ÈµÈ ¹ö·Î RMGI ÀÌÀåÀ縦 Àû¿ëÇÑ µÚ º¹ÇÕ·¹ÁøÀº ¶È°°ÀÌ Åë»óÀûÀÎ ¹æ¹ýÀ¸·Î ÀûÃþ¼öº¹ÇÏ¿´´Ù. 2% ¸ÞÆ¿·» ºí·ç ¿°»öÇÑ µÚ Ä¡¾ÆÀåÃà°ú ÆòÇàÇÏ°Ô ¼ø¼³¹æÇâÀ¸·Î Àý´ÜÇÏ¿© ¹Ì¼¼´©ÃâÀ» Çö¹Ì°æ°ú ÄÄÇ»ÅÍ ÇÁ·Î±×·¥À» »ç¿ëÇÏ¿© ºÐ¼®À» ÇÏ¿´´Ù. µ¥ÀÌÅÍ´Â Kruskal-Wallis test¿Í Mann-Whitney U-test (P < 0.05)·Î ºÐ¼®ÇÏ¿´´Ù.

°á°ú: RMGI ÀÌÀåÀç°¡ Àû¿ëµÈ ±ºÀº ±×·¸Áö ¾ÊÀº ±ºº¸´Ù ¿ùµîÈ÷ ÀûÀº ¹Ì¼¼´©ÃâÀ» º¸¿´À¸¸ç, ƯÈ÷ Ư¼ö °í¾ÈµÈ ¹ö¸¦ »ç¿ëÇÑ ±ºÀÇ 50%¿¡¼­´Â ÀüÇô ¹Ì¼¼´©ÃâÀ» º¸ÀÌÁö ¾Ê¾Ò´Ù. ±×·¯³ª, 2±º°ú 3±ºÀÇ °á°ú¿¡¼­ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ´Â °üÂûµÇÁö ¾Ê¾Ò´Ù.

°á·Ð: 2±Þ¿Íµ¿ÀÇ º¹ÇÕ·¹Áø ¼öº¹¿¡¼­ RMGI ÀÌÀåÀç´Â ±× Àû¿ë ¹æ¹ý¿¡ °ü°è¾øÀÌ ¹Ì¼¼´©ÃâÀ» °¨¼Ò½ÃÅ°´Âµ¥ È¿°úÀûÀÎ Àç·áÀÌ´Ù.

Purpose: The purpose of this study was to investigate the microleakage in class II cavity resin restorations used with resin-modified glass ionomer (RMGI) lining material depending on two different applying methods; classical delivery method using a dental explorer and a specially designed rotating bur.

Materials and Methods: A total thirty-six extracted teeth were prepared with a class II proximal box, and randomly divided into three groups: 1) control group with no lining added and the proximal box restored (Group I), 2) the second group used RMGI as a lining material which was spread with an explorer (Group II), 3) the third group used a specially designed rotating bur to thin out RMGI (Group III). All teeth were restored with the same manner using incrementally placed resin
composite. All 36 teeth were prepared and sectioned for the dye penetration test, and observed with a stereomicroscope for scoring the dye penetration.

Results: When RMGI liners were used, both groups using an explorer and the special bur with the liner had significantly less microleakage than the control group with no liner (P < 0.05). The 50% of the group with RMGI liner using the bur showed no microleakage under a dye penetration test whereas all the teeth in control group showed microleakage of different degrees. However, there was no statistically significant difference between Group II and Group III.

Conclusion: RMGI is an effective lining material to decrease microleakage in class II composite resin restorations regardless of applying methods.

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composite resins;glass ionomer cements;dental leakage;dental cavity preparation

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